air pollutant concentration 中文意思是什麼

air pollutant concentration 解釋
空氣污染物濃度
  • air : n 1 空氣，大氣。2 天空，空中。3 微風，和風。4 態度，樣子，風度，氣派；〈pl 〉高傲的架子。5 傳播，...
  • pollutant : n. 污染物〈尤指放入水中和空氣中的有害的化學物質〉。
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. Introduction to general ideas in air pollution, air pollution laws and regulation, meteorology for air pollution, air pollutant concentration models, gaussian plume model, the nature of particulate pollutants, control of particulate pollutants, the nature of gaseous pollutants, control of gaseous pollutants, the motor vehicle problem, air pollution and global climate

    本課程介紹空氣污染概述、空氣品質與相關法令、氣象學和空氣污染、空氣污染物擴散模式、高斯分佈模式、粒狀污染物之性質、粒狀污染物控制、氣狀污染物之性質、氣狀污染物控制、汽機車與空氣污染、空氣污染與全球氣候變遷。
  2. The result showed that the contamination situation in the lower zone of the office, i. e. the zone of occupants, was affected by of that of supply air. the supply air contamination should be kept to a low level in order to provide a good indoor air quality. however, the variation of the supply pollutant concentration has no influence on the indoor contaminant distribution of such system

    本文針對氣態污染物，研究了不同送風濃度對系統的影響，結果表明：置換通風房間的下部區域受送風污染物濃度的影響較大，人的工作區恰好處于該區，實踐中需要控制好送風濃度以保證人呼吸區的空氣品質；但是送風濃度的變化並不影響置換通風下污染物的分層分佈的特點。
  3. The forecast program of long - term average concentration of air pollutant and its application

    大氣污染物長期平均濃度預測程序的編制及應用
  4. Objective to study tendency of air pollutant concentration in decorated office

    摘要目的了解裝修后辦公室室內污染物濃度的變化特徵。
  5. The unsteady. flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general, utm ), and a new tunnel control method based on utm and neural network model is developed

    本文首次採用更符合實際情況的隧道氣流?維非恆定流理論和污染物濃度?維非恆定對流擴散模型（統稱非恆定流理論模型）進行隧道通風控制方法的研究，並提出了一套基於非恆定流理論和神經網路模型的新的隧道通風控制方法。
  6. Built up numerical simulation model of ufad system with single heat and pollutant source, adopted fluent software to study distribution of temperature 、 velocity and contamination ’ concentration, and changes of heat lamination height when temperature and velocity of air - in and surface temperature of heat source were changed and when the leakage of air - in plenum was considered or not. and compared and verified the simulation results with experimental testing data

    建立了單一熱污染源地板送風的數值模擬模型，採用fluent軟體研究送風溫度、送風速度、熱源表面溫度的變化及有無考慮送風靜壓層的漏風時，室內溫度、速度和污染物濃度分佈以及熱力分層高度的變化，並與實測分析進行了對比驗證。
  7. The particulate remains the key pollutant affecting the air quality in china. the annual concentration of the urban particulate in 64. 1 % of the cities exceeded grade ii

    顆粒物仍是影響我國城市空氣質量的主要污染物， 64 . 1 %的城市顆粒物年均濃度超過國家空氣質量二級標準。
  8. We present a methodology for computing daily pollutant concentration fields that reduces exposure uncertainty and bias by taking account of spatial variation in air quality

    我們呈現一個方法來計算每天污染物的濃度，以減少在考慮空氣品質的空間變異性時，對于暴露的不確定性及偏差。
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